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 ORIGINAL ARTICLE
Year : 2019  |  Volume : 67  |  Issue : 4  |  Page : 1056--1059

Antiplatelets versus Anticoagulants in the Treatment of Extracranial Carotid and Vertebral Artery Dissection


1 Comprehensive Stroke Care Program, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
2 Department of Biostatistics, Achutha Menon Centre for Health Sciences Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India

Correspondence Address:
Dr. P N Sylaja
Comprehensive Stroke Care Program, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum - 695 011, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.266290

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Background: Very few studies have compared the safety and efficacy of antiplatelets and anticoagulants in the treatment of extracranial carotid and vertebral artery dissection. Our study was aimed at comparing the two types of antithrombotic treatment in extracranial dissection and to study the predictors of outcome in these patients. Materials and Methods: Prospective data of 200 consecutive patients with a confirmed diagnosis of extracranial carotid (n = 132) or vertebral (n = 68) artery dissection (76% males; mean age, 43.5 ± 13 years) treated with antiplatelets (n = 136) or anticoagulants (n = 64) were analyzed retrospectively. The presenting symptom was stroke in 74.5%, transient ischemic attack (TIA) in 18.5%, and local symptoms in 7% of the patients. Follow-up was done at three and six months. Primary outcome measures were TIA or stroke and symptomatic intracerebral hemorrhage (SICH) at three months. Results: At the three-month follow-up, 106 (53%) patients had an excellent outcome. Recurrent ischemic events occurred in 7 (3.5%) and SICH in 11 (5.55%) patients. Six (4.41%) patients in the antiplatelet group and 1 patient (1.56%) in the anticoagulant group had recurrent ischemic events (P = 0.434); SICH was more frequent in the anticoagulant group (9.4% vs 3.7%, P = 0.185). On multivariate analysis, significant predictors of a poor three-month outcome were stroke as the presenting event and severity of stroke at onset. Conclusions: The risk of recurrent ischemic events in carotid and vertebral artery dissection is low and is irrespective of the type of antithrombotic treatment. Stroke as the presenting event and severity of stroke at onset were significant predictors of a poor three-month outcome.






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